Luna 1 was intended to impact the Moon's surface.[2][3] However, on January 4, 1959, it passed within 5995 km[2] of the Moon and began to orbit the Sun[1][2][3] between the orbits of Earth and Mars,[1][2] where it is still orbiting now,[1] on a 450 day orbit.[1] Thus, Luna 1 became the first spacecraft to orbit the Sun.[3]